What is the percentage by mass of sulphur in Al2(SO4)3[A12SO4 = 342g/mol, S = 32]​

Question

What is the percentage by mass of sulphur in Al2(SO4)3[A12SO4 =
342g/mol, S = 32]​

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MichaelMet 4 years 2021-09-03T08:00:35+00:00 1 Answers 10 views 0

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  1. Neala
    0
    2021-09-03T08:02:18+00:00
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    Answer: The percentage by mass of sulphur in Al_2(SO_4)_3 is 9.36%

    Explanation:

    Mass percent of an element is the ratio of mass of that element by the total mass expressed in terms of percentage.

    {\text {Mass percentage}}=\frac{\text {mass of sulphur}}{\text {Total mass}}\times 100\%

    Given: mass of sulphur = 32 g/mol

    mass of Al_2(SO_4)_3 = 342 g/mol

    Putting in the values we get:

    {\text {Mass percentage}}=\frac{32g/mol}{342g/mol}\times 100\%=9.36\%

    The percentage by mass of sulphur in Al_2(SO_4)_3 is 9.36%

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